how to reposition the popup when window gets resized

Hi All,

I am using popups in my application and I am positioning them at
absolute left and right of some other widget. Now the problem is that
when i resize the window then the relative widget left and right are
changing but the popup is still staying at the old position

Is there anyway I can reposition my popup when I resize the window.

Example:
PushButton someButton= new PushButton(addIcon);
someButton.setWidth(addIcon.getWidth() + "px");
someButton.setHeight(addIcon.getHeight() + "px");

fileListPopupPanel = new PopupPanel();
fileListPopupPanel.setStyleName("BrowserPanel-PopupPanel");
fileListPopupPanel.setAutoHideEnabled(false);

fileListPopupPanel.setPopupPosition(someButton.getAbsoluteLeft(),
(someButton
.getAbsoluteTop() + (someButton.getOffsetHeight())));

I appreciate your help.

Thanks,
satish

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